I think we all agree that it’s extremely unlikely that the OP would be able to afford medical school in the US. So there’s a decision to be made about priorities. What does the OP want most?
(a) Study in the US for a few years, without a clear path to staying in the US and without studying medicine.
(b) Immigrate to the US, maybe or maybe not as a physician.
© Go to medical school and become a physician, maybe or maybe not in the US.
In scenario ©, the OP’s best option in my opinion would be to study medicine at home. Maybe s/he’d get a residency position in the US, maybe not, but either way, s/he would be well on the way to become a physician.
If the number 1 priority is immigration, the objective should be to marry a US citizen. Unfortunately, that’s the only real option for immigration for most people (even highly-educated skilled workers). Going to college in the US might facilitate that.